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Full text of "Alaskan glacier studies of the National Geographic Society in the Yakutat Bay, Prince William Sound and lower Copper River regions"

340
ALASKAN GLACIER STUDIES
A group of three small glaciers on the western side of Barry Arm, near its junction with Port Wells, occupy the upper part of a large cirque, the hanging valley lip of which
is approximately 100 feet above sea level. There are still smaller ice remnants on the mountains between Port Wells and Harriman Fiord. The general extent of all these small glaciers was sketched by Grant and Higgins in 1909.
Bettels Glacier, which sends a stream to Bettels Bay (Fig. 50) heads in the same snowfields which feed Harriman and Dirty Glaciers. It is about 4 miles long,  mile wide, and terminates about 1J miles southwest of the head of Bettels Bay.
Pigot Glacier (Fig. 54) heads in cirques and snowfields adjoining those of Bettels Glacier and of several small glaciers in Passage Canal. It is about 3 miles long, $ mile wide, and ends about 1 miles from the head of Pigot Bay. It had about the same position upon Applegate's map in 1887, Glenn's map in 1898, and Grant and Biggins' map in 1909. The glacier surface is clean, apparently little crevassed, and is striped with four prominent medial moraines. A good-sized tributary enters from the east, another from the north, and another from the south not far from the terminus, the latter cascading down to the main ice tongue, with so steep a grade that it has the appearance of being an
avalanche where the ice is heaped Soundings in feet.    Submerged contour interval 200 feet            ,1               TV    j.  r~*i             t
(OutlineTcoast after Grant andHlggins).                              UP0n **? mai* *&* GlaCier>  al"
though it probably has no avalanche relationship. Near it are four or five small ice tongues, ending high on the mountain slopes which were formerly tributaries of Pigot Glacier. None of these glaciers have ever been studied at close range.
FIG. 49.   StrBiiAEnra TOPOGRAPHY IN POST